Cosmo's Crossworld Puzzle

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Across
  1. 4. Last name of mum's favorite singer
  2. 5. 9+27+13+40-81
  3. 7. LMS mascot
  4. 8. Where you will go to school
  5. 10. Royal's sport
  6. 11. Type of drum
Down
  1. 1. Character in Stranger Things
  2. 2. Gramo's dog
  3. 3. A crunchy snack
  4. 6. How many knives in the silverware drawer?
  5. 8. Who shot Hamilton?
  6. 9. Next-door neighbor